Practice The Experimental Proof - 5.4.1 | 5. MOLECULAR BASIS OF INHERITANCE | CBSE Grade-12 Biology
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What method did Meselson and Stahl use to prove semiconservative replication?

💡 Hint: Think about how scientists separate components by density.

Question 2

Easy

What is the role of DNA polymerase?

💡 Hint: Consider the action it performs during replication.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What does semiconservative replication mean?

  • Both strands are newly synthesized
  • Each new DNA contains one old and one new strand
  • No DNA replication occurs

💡 Hint: Think about how replicated DNA is formed!

Question 2

True or False: Meselson and Stahl used radioactive isotopes in their experiments.

  • True
  • False

💡 Hint: Recall the specific isotopes used in the experiment.

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Challenge Problems

Push your limits with challenges.

Question 1

Given a scenario where DNA replication is disrupted and polymerase adds incorrect bases during replication, describe how this could affect genetic information and evolution.

💡 Hint: Consider the role of mutations in populations and natural selection.

Question 2

Design an experiment to test if a new enzyme discovered in E. coli can also serve as a DNA polymerase and compare it to the existing enzyme.

💡 Hint: Think about how to set up controls for comparison.

Challenge and get performance evaluation